-9=7(u-6)+4u

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Solution for -9=7(u-6)+4u equation:


Simplifying
-9 = 7(u + -6) + 4u

Reorder the terms:
-9 = 7(-6 + u) + 4u
-9 = (-6 * 7 + u * 7) + 4u
-9 = (-42 + 7u) + 4u

Combine like terms: 7u + 4u = 11u
-9 = -42 + 11u

Solving
-9 = -42 + 11u

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-11u' to each side of the equation.
-9 + -11u = -42 + 11u + -11u

Combine like terms: 11u + -11u = 0
-9 + -11u = -42 + 0
-9 + -11u = -42

Add '9' to each side of the equation.
-9 + 9 + -11u = -42 + 9

Combine like terms: -9 + 9 = 0
0 + -11u = -42 + 9
-11u = -42 + 9

Combine like terms: -42 + 9 = -33
-11u = -33

Divide each side by '-11'.
u = 3

Simplifying
u = 3

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